1. Center for Cardiovascular Innovation Heart Rhythm Services Division of Cardiology Department of Medicine University of British Columbia Vancouver Canada
2. Unit of Cardiac Physiology Division of Cardiovascular Sciences Manchester Academic Health Science Centre University of Manchester Manchester UK
3. Department of Cardiac Sciences College of Medicine King Saud University Riyadh Saudi Arabia
4. University of Ottawa Heart Institute Ottawa Canada
5. Department of Cardiology Aalborg University Hospital Aalborg Denmark